Energy optimised operation of mi pneumatic systems

摘要

The mill pneumatic system is usually the biggest energy consumer in a flour mill. In the past, motors had to be oversized due the required torque for direct starting or configured with a star/delta start condition. Over the past ten years, the star/ delta configuration was increasingly replaced by frequency converters and soft starters. As a result of the smooth starting conditions, the significant torque reserves for motor startup are not required anymore, resulting in smaller motor sizes and increased operational efficiency.